skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 2D-Covalent Organic Frameworks with Interlayer Hydrogen Bonding Oriented through Designed Nonplanarity

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/jacs.0c03409· OSTI ID:1643960

We report the synthesis and characterization of a new class of 2D-covalent organic frameworks, called COFamides, whose layers are held together by amide hydrogen bonds. To accomplish this, we have designed monomers with a nonplanar structure that arises from steric crowding, forcing the amide side groups out of plane with the COF sheets orienting the hydrogen bonds between the layers. Here, the presence of these hydrogen bonds provides significant structural stabilization as demonstrated by comparison to control structures that lack hydrogen bonding capability, resulting in lower surface area and crystallinity. We have characterized both azine and imine-linked versions of these COFs, named COFamide-1 and -2, respectively, for their surface areas, pore sizes, and crystallinity. In addition to these more conventional characterization methods, we also used variable temperature infrared spectroscopy methods and van der Waals density functional calculations to directly observe the presence of hydrogen bonding.

Research Organization:
Wake Forest University, Winston-Salem, NC (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
Grant/Contract Number:
SC0019902
OSTI ID:
1643960
Journal Information:
Journal of the American Chemical Society, Vol. 142, Issue 30; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 25 works
Citation information provided by
Web of Science

References (44)

Porous, Crystalline, Covalent Organic Frameworks journal November 2005
Rationally synthesized two-dimensional polymers journal May 2013
Supramolecular design in 2D covalent organic frameworks journal January 2020
Enhanced Structural Organization in Covalent Organic Frameworks Through Fluorination journal March 2017
Experimental and theoretical insight into the effect of fluorine substituents on the properties of azine linked covalent organic frameworks journal January 2017
Control of Crystallinity and Porosity of Covalent Organic Frameworks by Managing Interlayer Interactions Based on Self-Complementary π-Electronic Force journal December 2012
A supramolecular strategy based on molecular dipole moments for high-quality covalent organic frameworks journal January 2016
A tunable azine covalent organic framework platform for visible light-induced hydrogen generation journal September 2015
Computational and Experimental Studies on the Effects of Monomer Planarity on Covalent Organic Framework Formation journal July 2017
Ultrastable Imine-Based Covalent Organic Frameworks for Sulfuric Acid Recovery: An Effect of Interlayer Hydrogen Bonding journal April 2018
Urea-Linked Covalent Organic Frameworks journal November 2018
Interlayer Hydrogen-Bonded Covalent Organic Frameworks as High-Performance Supercapacitors journal August 2018
Ultrastable Triazine-Based Covalent Organic Framework with an Interlayer Hydrogen Bonding for Supercapacitor Applications journal July 2019
Enhancement of Chemical Stability and Crystallinity in Porphyrin-Containing Covalent Organic Frameworks by Intramolecular Hydrogen Bonds journal October 2013
The intramolecular H-bonding effect on the growth and stability of Schiff-base surface covalent organic frameworks journal January 2017
Self-templated chemically stable hollow spherical covalent organic framework journal April 2015
Tuneable near white-emissive two-dimensional covalent organic frameworks journal June 2018
Rapid, Scalable Construction of Highly Crystalline Acylhydrazone Two-Dimensional Covalent Organic Frameworks via Dipole-Induced Antiparallel Stacking journal February 2020
Decoding the Morphological Diversity in Two Dimensional Crystalline Porous Polymers by Core Planarity Modulation journal March 2016
High strength films from oriented, hydrogen-bonded “graphamid” 2D polymer molecular ensembles journal February 2018
Using Hydrogen Bonds to Direct the Assembly of Crowded Aromatics journal October 2004
Designing Covalent Organic Frameworks with a Tailored Ionic Interface for Ion Transport across One‐Dimensional Channels journal January 2020
An Azine-Linked Covalent Organic Framework journal November 2013
A 2D azine-linked covalent organic framework for gas storage applications journal January 2014
Desymmetrized Vertex Design for the Synthesis of Covalent Organic Frameworks with Periodically Heterogeneous Pore Structures journal October 2015
An azine-linked hexaphenylbenzene based covalent organic framework journal January 2016
A 2D Covalent Organic Framework with 4.7-nm Pores and Insight into Its Interlayer Stacking journal December 2011
Design Principles for Covalent Organic Frameworks in Energy Storage Applications journal April 2017
Benzene ring assembly promoted by a camphor derived palladium complex journal August 2003
Molecular docking sites designed for the generation of highly crystalline covalent organic frameworks journal February 2016
Synchronized Offset Stacking: A Concept for Growing Large-Domain and Highly Crystalline 2D Covalent Organic Frameworks journal December 2016
A Wavy Two-Dimensional Covalent Organic Framework from Core-Twisted Polycyclic Aromatic Hydrocarbons journal August 2019
Switching on and off Interlayer Correlations and Porosity in 2D Covalent Organic Frameworks journal June 2019
Bulk Synthesis of Exfoliated Two-Dimensional Polymers Using Hydrazone-Linked Covalent Organic Frameworks journal September 2013
Growth rates and water stability of 2D boronate ester covalent organic frameworks journal January 2015
Insight into the crystallization of amorphous imine-linked polymer networks to 2D covalent organic frameworks journal January 2016
Hydrogen bonding in polymers: infrared temperature studies of an amorphous polyamide journal September 1985
Hydrogen bonding in polymers: III further infrared temperature studies of polyamides journal September 1986
Hydrogen bonding in polymers. 2. Infrared temperature studies of nylon 11 journal March 1986
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
A density functional for sparse matter journal January 2009
van der Waals forces in density functional theory: a review of the vdW-DF method journal May 2015
Spin Signature of Nonlocal Correlation Binding in Metal-Organic Frameworks journal September 2015